S-91217A125 M4 x 10 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise thread engagement with Class 6g tolerance ensuring reliable fastening and vibration resistance in machinery assemblies
• Secure anti-loosening grip thanks to the 90° cone point design that bites into mating surfaces for permanent component positioning
• High-strength durability with Rockwell B80 hardness providing excellent resistance to wear and deformation under load
• Space-saving installation through headless design ideal for confined spaces where traditional screw heads won't fit
• Efficient torque transmission via 2mm hex drive allowing high tightening forces without cam-out issues
• Global compliance assurance meeting DIN 914/ISO 4027 standards plus RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

These M4 set screws deliver critical engineering solutions for precision industrial applications where component slippage or misalignment cannot be tolerated. The 18-8 stainless steel composition provides essential corrosion resistance for equipment exposed to moisture, chemicals, or outdoor elements, while the Rockwell B80 hardness ensures the cone point maintains its biting capability through repeated adjustment cycles. The headless design with hex drive enables flush mounting in pulleys, gears, and collars where protruding fastener heads would interfere with mechanical operation. Particularly valuable in automation systems, motor assemblies, and precision instrumentation, these metric set screws with coarse thread pitch offer rapid installation while maintaining the positional accuracy required for critical shaft-hub connections and alignment-sensitive applications.

Specification Summary & Compliance

Manufactured to exact metric dimensions (M4 x 0.7mm x 10mm) with Class 6g thread fit per ISO standards, these set screws guarantee dimensional consistency across production runs. The right-hand coarse thread configuration follows international DIN 914 and ISO 4027 specifications for set screw design and performance requirements. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmentally responsible manufacturing and material sourcing, making these fasteners suitable for global supply chains and regulated industries.